code: def forward(self, x):
      x = x.view(x.size(0), -1)
      x = torch.relu(self.l1(x))
      x = torch.relu(self.l2(x))
      return x
  
file_path: clearml/examples/frameworks/pytorch-lightning/pytorch_lightning_example.py
imports: import sys
  from argparse import ArgumentParser
  import pytorch_lightning
  import torch
  from torch.nn import functional
  from torch.utils.data import DataLoader, random_split
  from torchvision import transforms
  from torchvision.datasets.mnist import MNIST
  from clearml import Task
label_desc: Use image node_id 2 for calling the LitClassifier obj's underlying member method code with example usage: obj.forward(x) and returns: x